[android help] Android Support BackStackRecord nullpointerexception

Android Support BackStackRecord nullpointerexception

I am working with Fragments, and the commit method call on my FragmentTransaction object is throwing a NullPointerException, what could cause this?

FragmentTransaction fragTrans= getSupportFragmentManager().beginTransaction();
            fragTrans.hide(fragmentA);
            fragTrans.hide(fragmentB);
            fragTrans.commit();

If I run the code and comment out the commit, the NPE isn't thrown, so I've narrowed it down to the commit.

The NPE is caused by android.support.v4.BackStackRecord.run

.

stackoverflow.comm